Strings in Singular Time-Dependent Backgrounds
High Energy Physics - Theory
2009-11-10 v1
Abstract
We review the construction of time-dependent backgrounds with space-like singularities. We mainly consider exact CFT backgrounds. The algebraic and geometric aspects of these backgrounds are discussed. Physical issues, results and difficulties associated with such systems are reviewed. Finally, we present some new results: a two dimensional cosmology in the presence of an Abelian gauge field described within a family of (SL(2)xU(1))/(U(1)xZ) quotient CFTs.
Keywords
Cite
@article{arxiv.hep-th/0305137,
title = {Strings in Singular Time-Dependent Backgrounds},
author = {Amit Giveon and Eliezer Rabinovici and Amit Sever},
journal= {arXiv preprint arXiv:hep-th/0305137},
year = {2009}
}
Comments
22 pages, 4 figures, Contribution to the proceedings of Symposium Ahrenshoop, August 2002